Global Patent Index - EP 0903189 A1

EP 0903189 A1 19990324 - Reinforced ceramic shell mold and method of making same

Title (en)

Reinforced ceramic shell mold and method of making same

Title (de)

Verstärkte keramische Maskenform und Verfahren zu deren Herstellung

Title (fr)

Moule-carapace céramique renforcé et son procédé de fabrication

Publication

EP 0903189 A1 19990324 (EN)

Application

EP 98116183 A 19980827

Priority

US 93584697 A 19970923

Abstract (en)

A ceramic investment shell mold is reinforced with a carbon based fibrous reinforcement having an extremely high tensile strength that increases as the mold temperature is increased especially within the range of casting temperatures employed for casting large directionally solidified industrial gas turbine components. The carbon based fibrous reinforcement is wrapped or otherwise positioned around the repeating ceramic slurry/stucco layers forming the intermediate thickness of the shell mold wall. The reinforced shell mold can be used to cast large directionally solidified industrial gas turbine components with accurate dimensional control. <IMAGE>

IPC 1-7

B22C 1/16; B22C 9/04

IPC 8 full level

B22C 3/00 (2006.01); B22C 1/00 (2006.01); B22C 1/16 (2006.01); B22C 9/04 (2006.01)

CPC (source: EP US)

B22C 1/00 (2013.01 - EP US); B22C 1/165 (2013.01 - EP US); B22C 9/04 (2013.01 - EP US); Y10T 29/49988 (2015.01 - EP US)

Citation (search report)

  • [A] US 4998581 A 19910312 - LANE JAN M [US], et al
  • [A] EP 0763392 A2 19970319 - CAPE BOARDS SIBORIT GMBH [DE]
  • [A] PATENT ABSTRACTS OF JAPAN vol. 004, no. 105 (M - 023) 26 July 1980 (1980-07-26)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 005, no. 065 (M - 066) 30 April 1981 (1981-04-30)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 011, no. 076 (M - 569) 7 March 1987 (1987-03-07)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0903189 A1 19990324; EP 0903189 B1 20060823; DE 69835646 D1 20061005; DE 69835646 T2 20070823; JP 2009208152 A 20090917; JP 4458565 B2 20100428; JP 5078946 B2 20121121; JP H11156483 A 19990615; US 2001009182 A1 20010726; US 2002084057 A1 20020704; US 2002134526 A1 20020926; US 6364000 B2 20020402; US 6460599 B1 20021008; US 6568458 B2 20030527

DOCDB simple family (application)

EP 98116183 A 19980827; DE 69835646 T 19980827; JP 2009147372 A 20090622; JP 27259598 A 19980909; US 2049001 A 20011030; US 2247001 A 20011030; US 93584697 A 19970923